Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 69 + 63 by rounding each number to the nearest 10: ______
- Estimate 82 − 73 by rounding each number to the nearest 10: ______
- Estimate 78 − 83 by rounding each number to the nearest 10: ______
- Estimate 25 − 80 by rounding each number to the nearest 10: ______
- Estimate 89 + 47 by rounding each number to the nearest 10: ______
- Estimate 81 + 89 by rounding each number to the nearest 10: ______
- Estimate 66 − 37 by rounding each number to the nearest 10: ______
- Estimate 27 − 54 by rounding each number to the nearest 10: ______
- Estimate 28 + 21 by rounding each number to the nearest 10: ______
- Estimate 30 + 61 by rounding each number to the nearest 10: ______
- Estimate 38 − 76 by rounding each number to the nearest 10: ______
- Estimate 72 + 75 by rounding each number to the nearest 10: ______
- Estimate 22 + 40 by rounding each number to the nearest 10: ______
- Estimate 88 + 83 by rounding each number to the nearest 10: ______
- Estimate 62 − 52 by rounding each number to the nearest 10: ______
- Estimate 29 + 35 by rounding each number to the nearest 10: ______
- Estimate 35 − 32 by rounding each number to the nearest 10: ______
- Estimate 40 + 41 by rounding each number to the nearest 10: ______
- Estimate 87 − 36 by rounding each number to the nearest 10: ______
- Estimate 50 + 77 by rounding each number to the nearest 10: ______